Based on the provided reference from StarTech.com, the maximum length specified for a DisplayPort cable is 50 ft. (15.2m).
It's important to note that achieving these longer lengths, especially 50 ft., typically requires the use of an active DisplayPort cable. Unlike passive cables, active cables contain built-in signal amplification technology to maintain signal integrity over longer distances and support higher resolutions and refresh rates.
Here is a summary of maximum lengths for various video standards as listed in the reference:
| Video Standard | Maximum Length |
|---|---|
| DisplayPort | 50 ft. (15.2m) |
| HDMI | 50 ft. (15.2m) |
| DVI | 50 ft. (15.2m) |
| VGA | 200 ft. (71m) |
- Passive DisplayPort cables generally have a much shorter maximum reliable length, often limited to around 6-10 feet (2-3 meters) for optimal performance, especially at higher resolutions or refresh rates.
- For runs exceeding the passive limits, or up to the 50 ft. (15.2m) indicated, an active cable is the recommended solution to ensure stable video and audio transmission.
Therefore, while passive cables are suitable for short connections, reaching the 50 ft. maximum length requires active technology.
